I've owned Fighting Street as long as my Duo (about 6-7 years) and I've probably played around iwth it for a total of 3 hours.
Street Fighter 1 was totally my favorite Arcade game as a kid, and I had always wanted to play the TurboGrafx CD version, so I bought a Duo.
I also own a dedicated arcade machine, converted to a 6 button setup.
The PCE port of Street Fighter (Fighting Street) attempts to emulate the 2 button version, in which the strength of the player's attack is determined by how hard the player hits the button.
http://www.klov.com/images/11/118124217352.jpgI haven't played a 2 button arcade version in 20 years, but from what I remember the buttons responded nearly instantaneously. The PCE buttons, though, are delayed a bit.
The key to doing the special moves flawlessly in Fighting Street on PCE is mastering the amount of time between the time the button is pressed and the on-screen attack is initiated. The player must finish the controller motion just before the attack is initiated, but because of the delay between pressing the button and on-screen response, this is very tricky.
For anyone who would really like to play Street Fighter 1 at home with consistent, arcade-perfect controls, I recommend the ps2 port found on "Capcom Classics Collection vol. 2"
The Capcom Classics port of Street Fighter 1 attempts to emulate the 6-button version. The 6-button version works quite differently. In the 6 button version, attacks are initiated on-screen when the player RELEASES the button, not when the player presses the button. Once this nuance is mastered, special moves are easy and consistent.
For anyone interested, you can also perform special moves by releasing the button in street fighter 2, including on the PCE version, I believe, though non-special attacks do not trigger by releasing the button, only specials.
I just thought I would share this with everyone because Fighting Street has unanimously been thrown to the scrap heap, it seems. Not that I'm saying it shouldn't be, because the controls do seem poorly emulated...
I thought it might be interesting if I shed some light as to why the controls are the way they are in Fighting Street.